Iveco Daily Euro 4. Manual — part 141

44598

Figure 32

Mark the position of the caps (1 and 2) and remove them.

44599a

Figure 33

Take out the gear housing (1).

Note the assembly position of the adjustment rings (3) and
take them out of the housing together with the spacer rings
(2).

Extract the support bearing inner rings (3 and 5) and shoulder
ring (2) from the gear housing and, by means of the puller tool
99348001 (4), extract the counter block (1).

44600

Figure 34

Disassembly of gear housing

62099

18222

Figure 35

Figure 36

Unscrew the screws (2), remove the ring bevel gear (3) and
the gear housing (4) cover (1).

Remove the crown wheel (2) on the cover side with its thrust
washer (3) from the gear housing (1).
Using a generic beater to remove the long pin (4) and the
two short pins (5) from the gearing case (1).

The thrust ring (2) is only present with rear axles
fitted with differential locking.

NOTE

Mark the cover (1) and the gear housing (4).

NOTE

In the case of reuse, do not swap over the assembly
positions of the external rings (4) of the tapered
roller bearings.

NOTE

REAR AXLE 450511

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20378

18226

Figure 37

Remove the spider (1) and the four planetary gears (2) with
their shoulder washers (3) from the gear housing.

Remove the crown wheel (1) on the gear housing side with
the thrust washers.

51863

PARTS COMPRISING THE DIFFERENTIAL UNIT

1. Nut - 2. Transmission connection coupling - 3. Seal - 4. Front bearing - 5. Pinion shim ring - 6. Fixed

spacer - 7. Spacer ring - 8. Adjustment ring - 9. Rear bearing - 10. Bevel pinion - 11. Ring bevel gear - 12. Fixed ring -

13. Adjustment ring - 14. Bearing - 15. Thrust ring (axle with differential locking) - 16. Gear housing - 17. Crown wheel

thrust washer - 18. Spider - 19. Crown wheel - 20. Gear housing cover - 21. Screw - 22. Planetary gear thrust washer - 23.

Planetary gear - 24. Short pin - 25. Long pin.

Figure 38

Figure 39

74

REAR AXLE 450511

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4

Assemble the cover and make the marks made during
disassembly coincide. Assemble the ring bevel gear and fasten
this to the half-casing by means of the fixing screws.
By means of a torque wrench (1) tighten the fixing screws (2)
to the required tightening torque.

Position the other two planetary gears (1) complete with
thrust washers and then insert the two short pins (2).
Rotate the planetary gears-crown wheel unit and check that
it is free without stiffness.
Assemble the other crown wheel complete with thrust
washer.

Position the two planetary gears (1) complete with thrust
washers, spider (2) and then insert the long pin (3).

Position the crown wheel (1), gear housing side, complete
with thrust washer, into its own housing.

18226

20380

20379

18237

Figure 40

Figure 41

Figure 42

Figure 43

Assembly of gear housing

Only for axles with differential lock.
Using tool 99305121, heat thrust ring (1) to a temperature
of 120ºC

÷ 150ºC for 15’ and fit on the gear casing (2) from

the side with the differential lock.

Figure 44

1

2

18240

Assembling bevel pinion unit

Figure 45

On a surface plate (2) zero the dial gauge (1) placed on the
support 99395728 (3) and lightly pre-load it.

18241

REAR AXLE 450511

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